The portion of the file holding the audio data. The audio data might be compressed to save disk space. The data has to be decompressed using an audio decompressor before you can play (hear) it.

oftware component which decompresses audio. It must be designed to work with ACM or DirectShow. Note that different compression methods require different decompressors. There is no universal decompressor capable of decoding all compressed streams.

IltmmCapture::get_Mute

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#include "ltmm.h"

C Syntax	HRESULT IltmmCapture_get_Mute(pCapture, pVal)
C++ Syntax	HRESULT get_Mute(pVal)

IltmmCapture *pCapture;	/* pointer to an interface */
VARIANT_BOOL *pVal;	/* pointer to a variable */

Determines whether the audio stream for the preview output is muted.

Parameter	Description
pCapture	Pointer to an IltmmCapture interface.
pVal	Pointer to a variable to be updated with a value that indicates whether the audio stream is muted. Possible values are:
	Value	Meaning
	TRUE	The audio stream is muted.
	FALSE	The audio stream is not muted.

Returns

S_OK	The function was successful.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

If the audio stream is not muted, then the volume used is the volume set using IltmmCapture::put_Volume. This property gets only the mute value that is applied to the preview output.

Required DLLs and Libraries

LTMM

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64

Elements:	IltmmCapture::get_Balance, IltmmCapture::put_Balance, IltmmCapture::get_Volume, IltmmCapture::put_Volume, IltmmCapture::put_Mute
Topics:	Multimedia Function Group